Bulletins & Announcements

Aerial adult mosquito treatment in Roseville, Lincoln, and west Placer September 7, 2017 8:00 – 11:00 PM

Areas of western Placer County are scheduled for treatment. An EPA-registered mosquito adulticide will be applied in an ultra-low volume (ULV) fog by aircraft in an effort to address increased mosquito populations and elevated West Nile virus activity.

Treatment areas (Click on map for larger image):


  • Residential areas of western Roseville, west of Fiddyment Road

Western agricultural areas:

  • Residential areas along Amoruso Way


  • Residential areas east of Aviation Blvd/Nelson Lane to Lincoln Blvd/Old Hwy 65, bordered by 5th Street on the south.

Note: Depending on weather conditions, the pilot may have to perform an “offset treatment”.  This means that residents may see the plane flying outside of the designated treatment area in order to compensate for wind speed and direction and to ensure that our public health materials are reaching the intended area scheduled for the treatment.